C#•14mo ago

❔ ✅ may someone help me to rewrite this in linq?

var map = new Dictionary<string, List<NotificationModel>>();         
                                                                     
foreach (var notification in confirmedNotifications)               
{                                                                    
    var to = notification.To                                         
        .Except(new HashSet<string> { currentOperator.Name })      
        .ToList();                                                   
                                                                     
    if (!to.Any()) continue;                                       
                                                                     
    foreach (var user in to)                                       
    {                                                                
        if (map.ContainsKey(user))                                   
            map[user].Add(notification);                             
        else                                                         
            map[user] = new List<NotificationModel> { notification };
    }                                                                
}

var map = new Dictionary<string, List<NotificationModel>>();         
                                                                     
foreach (var notification in confirmedNotifications)               
{                                                                    
    var to = notification.To                                         
        .Except(new HashSet<string> { currentOperator.Name })      
        .ToList();                                                   
                                                                     
    if (!to.Any()) continue;                                       
                                                                     
    foreach (var user in to)                                       
    {                                                                
        if (map.ContainsKey(user))                                   
            map[user].Add(notification);                             
        else                                                         
            map[user] = new List<NotificationModel> { notification };
    }                                                                
}

I wrote only this:

var test = confirmedNotifications                                 
    .Where(notification => notification.To                    
        .Except(new HashSet<string> { currentOperator.Name })
        .Any());

var test = confirmedNotifications                                 
    .Where(notification => notification.To                    
        .Except(new HashSet<string> { currentOperator.Name })
        .Any());

3 Replies

reflectronic•14mo ago

var res = confirmedNotifications
    .SelectMany(notification => notification.To, (notification, to) => (notification, to))
    .Where(t => t.to != currentOperator.Name)
    .ToLookup(t => t.to, t => t.notification);

var res = confirmedNotifications
    .SelectMany(notification => notification.To, (notification, to) => (notification, to))
    .Where(t => t.to != currentOperator.Name)
    .ToLookup(t => t.to, t => t.notification);

how did i do i like this question, actually, it took me a minute

SWEETPONYOP•14mo ago

thanks!

Accord•14mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ ✅ may someone help me to rewrite this in linq?